Go to the school & up your stats.e.g.intelligence,strength etc.
Chat with our AI personalities
You can have up too 5 traits for each sim on Sims 3.
Only the baby can grow up. Which is 3 days. The boy or girl Sim(child sim) can't grow up.
Put the cursor on your sim and then a list will pop up, when it pops up, 'Look in inventory' will be there, click on it and there you go.(:
You can get the hack or, to earn it, every 5 days, will revive up to 10 Sim cash. So you will at least get 1 Sim cash.
It takes three Sim days for the baby to turn into a child.